Home / 10,128.04-15,190.22-2,730.76

Finding the Fourth Proportional to 10,128.04, 15,190.22 and 2,730.76

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Solution

The fourth proportional to 10,128.04, 15,190.22 and 2,730.76 is: 4,095.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.04 : 15,190.22 = 2,730.76 : x
  2. Step 2: Convert to fraction form
    10,128.04/15,190.22 = 2,730.76/x
  3. Step 3: Cross multiply
    10,128.04x = 15,190.22 × 2,730.76
  4. Step 4: Simplify right side
    10,128.04x = 41,480,814.02
  5. Step 5: Solve for x
    x = 41,480,814.02/10,128.04
  6. Step 6: Final answer
    x = 4,095.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.